<template>
  <div class="header">
    <div class="logo">实践技能客观化考试设备管理系统</div>
    <div class="user-info">
      <el-dropdown trigger="click" @command="handleCommand">
                <span class="el-dropdown-link">
                    <img class="user-logo" src="../../../static/img/deveye.jpg">
                    {{username}}
                </span>
        <el-dropdown-menu slot="dropdown">
          <el-dropdown-item command="loginout">退出</el-dropdown-item>
        </el-dropdown-menu>
      </el-dropdown>
    </div>
  </div>
</template>
<script>
  import { delCookie} from '../../assets/js/cookie.js'
  export default {
    data() {
      return {
        username: ''
      }
    },
    created() {
      this.username = localStorage.userDisplayName;
    },
    methods: {
      handleCommand(command) {
        if (command == 'loginout') {
          delCookie('token');
          location.reload()
        }
      }
    }
  }
</script>
<style scoped>
  .header {
    position: relative;
    box-sizing: border-box;
    width: 100%;
    height: 70px;
    font-size: 22px;
    line-height: 70px;
    color: #fff;
  }

  .header .logo {
    float: left;
    padding-left: 20px;
    /*width: 220px;*/
    text-align: center;
  }

  .user-info {
    float: right;
    padding-right: 50px;
    font-size: 16px;
    color: #fff;
  }

  .user-info .el-dropdown-link {
    position: relative;
    display: inline-block;
    padding-left: 50px;
    color: #fff;
    cursor: pointer;
    vertical-align: middle;
  }

  .user-info .user-logo {
    position: absolute;
    left: 0;
    top: 15px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
  }

  .el-dropdown-menu__item {
    text-align: center;
  }
</style>
